2001 Mercury 90-HP: Electrical Problem with Starting Motor

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Author Topic:   2001 Mercury 90-HP: Electrical Problem with Starting Motor

jtms posted 07-09-2010 06:49 PM ET (US)
How do you do [unclear, possible means to ask how to bypass the solenoid on the electrical starting motor circuit] on a 2001 [Mercury] 90-HP? Do you simply put the red on red and black on black and fire her up?
When I turn the key all I hear is a clicking noise. I will check all the connections tomorrow, and battery. In the event those two look fine, I am guessing it has to be the solenoid or starter. Seems to me if you jump the solenoid and the engine fires up that means I have a bad solenoid which is an easy and inexpensive fix.
Thanks-
andygere posted 07-09-2010 06:57 PM ET (US)
The solenoid is just a switch. It will have a high current lead on either side. To jump or by pass the solenoid, simply put on jumper cable lead on one lug, turn the boat ignition on, and touch the other end of the same color jumper cable to the opposite lug on the solenoid. If the starter engages, you have found your problem. Be careful, you can get quite a shock from a 12V battery. If you are unsure about how to do this, get help from somebody familiar with 12V marine electrical systems.
jimh posted 07-09-2010 08:46 PM ET (US)
Whenever I see someone asking for advice about very high-current electrical circuits and they use descriptions like "Do you simply put the red on red and black on black...," the only advice I am willing to offer is to take the motor to a qualified outboard motor technician.
Anyone whose familiarity with simple DC electrical circuits is so limited they cannot understand how a solenoid works should not be working on high-current electrical circuits. They can be very dangerous.
[Thread closed.]

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Author	Topic: 2001 Mercury 90-HP: Electrical Problem with Starting Motor
jtms	posted 07-09-2010 06:49 PM ET (US) How do you do [unclear, possible means to ask how to bypass the solenoid on the electrical starting motor circuit] on a 2001 [Mercury] 90-HP? Do you simply put the red on red and black on black and fire her up? When I turn the key all I hear is a clicking noise. I will check all the connections tomorrow, and battery. In the event those two look fine, I am guessing it has to be the solenoid or starter. Seems to me if you jump the solenoid and the engine fires up that means I have a bad solenoid which is an easy and inexpensive fix. Thanks-
andygere	posted 07-09-2010 06:57 PM ET (US) The solenoid is just a switch. It will have a high current lead on either side. To jump or by pass the solenoid, simply put on jumper cable lead on one lug, turn the boat ignition on, and touch the other end of the same color jumper cable to the opposite lug on the solenoid. If the starter engages, you have found your problem. Be careful, you can get quite a shock from a 12V battery. If you are unsure about how to do this, get help from somebody familiar with 12V marine electrical systems.
jimh	posted 07-09-2010 08:46 PM ET (US) Whenever I see someone asking for advice about very high-current electrical circuits and they use descriptions like "Do you simply put the red on red and black on black...," the only advice I am willing to offer is to take the motor to a qualified outboard motor technician. Anyone whose familiarity with simple DC electrical circuits is so limited they cannot understand how a solenoid works should not be working on high-current electrical circuits. They can be very dangerous. [Thread closed.]